Recombinant Human GSTP1 Protein, CF

R&D Systems, part of Bio-Techne | Catalog # 6455-GT

R&D Systems, part of Bio-Techne
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6455-GT-010
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Key Product Details

Source

E. coli

Accession #

AAC51280

Conjugate

Unconjugated

Applications

Enzyme Activity

View all Glutathione S-Transferase pi 1/GSTP1 Proteins and Enzymes »

Product Specifications

Source

E. coli-derived human Glutathione S-Transferase pi 1/GSTP1 protein
Met1-Glu210

Purity

>95%, by SDS-PAGE under reducing conditions and visualized by Colloidal Coomassie® Blue stain at 5 μg per lane.

Endotoxin Level

<1.0 EU per 1 μg of the protein by the LAL method.

N-terminal Sequence Analysis

Met

Predicted Molecular Mass

23 kDa

SDS-PAGE

24 kDa, reducing conditions

Activity

Measured by the conjugation of reduced glutathione to 1-bromo-2,4-dinitrobenzene.
The specific activity is >25,000 pmol/min/μg, as measured under the described conditions.

Formulation, Preparation and Storage

6455-GT
Formulation Supplied as a 0.2 μm filtered solution in Tris, NaCl and Glycerol.
Shipping The product is shipped with dry ice or equivalent. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
  • 6 months from date of receipt, -70 °C as supplied.
  • 3 months, -70 °C under sterile conditions after opening.

Background: Glutathione S-Transferase pi 1/GSTP1

Glutathione S-Transferases (GSTs) are members of the phase II detoxification enzyme family that conjugate glutathione to various electrophilic compounds, including metabolites generated by oxidative processes in the body, environmental toxins or carcinogens, and anti-cancer drugs. GSTP1 is a cytosolic protein that belongs to pi class of the GST superfamily. It is crystallized as a homodimer (1), but also exists in solution as an equilibrium mixture of monomer and dimer, depending on the protein concentration (2). Four genetic variants of GSTP1 with different enzymatic activities have been identified, which indicates the particular allelic form expressed in tissues could contribute to variation in catalytic efficiency and biological functions (3, 4). Human GSTP1 is present at elevated levels in many tumor cells, and has unique properties as a cancer marker (5). Genetic polymorphisms and expression patterns of GSTP1 have been associated with a variety of effects on human cancer, anti-cancer drug resistance, and asthma (6). In addition to its role as a drug-metabolizing enzyme, GSTP1 has ligand binding properties and regulates kinase signaling pathways through protein-protein interactions (7).

References

  1. Reinemer, P. et al. (1992) J. Mol. Biol. 227:214.
  2. Huang, Y.C. et al. (2008) J. Biol. Chem. 283:32880.
  3. Ali-Osman, F. et al. (1997) J. Biol. Chem. 272:10004.
  4. Hu, X. et al. (1998) Cancer Res. 58:5340.
  5. Sato, K. et al. (1992) Tohoku J. Exp. Med. 168:97.
  6. Townsend, D.M. and K.D. Tew (2003) Oncogene 22:7369.
  7. Adler, V. et al. (1999) EMBO J. 18:1321.

Alternate Names

DFN7, FAEES3, Glutathione STransferase pi 1, GSTP1

Entrez Gene IDs

2950 (Human)

Gene Symbol

GSTP1

UniProt

AAC51280

Additional Glutathione S-Transferase pi 1/GSTP1 Products

Product Documents for Recombinant Human GSTP1 Protein, CF

Product Datasheets

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Product Specific Notices for Recombinant Human GSTP1 Protein, CF

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